--- a/mercurial/util.py	Fri Aug 15 19:18:21 2014 -0700
+++ b/mercurial/util.py	Fri Aug 15 20:02:18 2014 -0700
@@ -53,6 +53,7 @@
 popen = platform.popen
 posixfile = platform.posixfile
 quotecommand = platform.quotecommand
+readpipe = platform.readpipe
 rename = platform.rename
 samedevice = platform.samedevice
 samefile = platform.samefile